1358949620 has 48 divisors (see below), whose sum is σ = 3270489600. Its totient is φ = 464638464.

The previous prime is 1358949619. The next prime is 1358949661. The reversal of 1358949620 is 269498531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38156 + ... + 64604.

It is an arithmetic number, because the mean of its divisors is an integer number (68135200).

Almost surely, 2^1358949620 is an apocalyptic number.

1358949620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1358949620 is an abundant number, since it is smaller than the sum of its proper divisors (1911539980).

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

1358949620 is a wasteful number, since it uses less digits than its factorization.

1358949620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26832 (or 26830 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 1358949620 is about 36863.9338649580. The cubic root of 1358949620 is about 1107.6463452285.

The spelling of 1358949620 in words is "one billion, three hundred fifty-eight million, nine hundred forty-nine thousand, six hundred twenty".