1351438830 has 320 divisors, whose sum is σ = 4452738048. Its totient is φ = 287400960.

The previous prime is 1351438819. The next prime is 1351438841. The reversal of 1351438830 is 388341531.

It is an interprime number because it is at equal distance from previous prime (1351438819) and next prime (1351438841).

It is a super-2 number, since 2×1351438830² = 3652773822463537800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 5607510 + ... + 5607750.

Almost surely, 2^1351438830 is an apocalyptic number.

1351438830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1351438830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2226369024).

1351438830 is an abundant number, since it is smaller than the sum of its proper divisors (3101299218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1351438830 is a wasteful number, since it uses less digits than its factorization.

1351438830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1351438830 is about 36761.9209236949. The cubic root of 1351438830 is about 1105.6019542584.

The spelling of 1351438830 in words is "one billion, three hundred fifty-one million, four hundred thirty-eight thousand, eight hundred thirty".