1550197430 has 8 divisors (see below), whose sum is σ = 2790355392. Its totient is φ = 620078968.

The previous prime is 1550197427. The next prime is 1550197609. The reversal of 1550197430 is 347910551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1550197430² = 4806224143957209800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77509862 + ... + 77509881.

It is an arithmetic number, because the mean of its divisors is an integer number (348794424).

Almost surely, 2^1550197430 is an apocalyptic number.

1550197430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1550197430 is a deficient number, since it is larger than the sum of its proper divisors (1240157962).

1550197430 is a wasteful number, since it uses less digits than its factorization.

1550197430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155019750.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 1550197430 is about 39372.5466537282. The cubic root of 1550197430 is about 1157.3436616625.

The spelling of 1550197430 in words is "one billion, five hundred fifty million, one hundred ninety-seven thousand, four hundred thirty".