1357099290 has 48 divisors (see below), whose sum is σ = 3736018728. Its totient is φ = 340604928.

The previous prime is 1357099279. The next prime is 1357099309. The reversal of 1357099290 is 929907531.

It is a happy number.

1357099290 is a `hidden beast` number, since 1 + 357 + 0 + 9 + 9 + 290 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 962798841 + 394300449 = 31029^2 + 19857^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441967 + ... + 445026.

Almost surely, 2^1357099290 is an apocalyptic number.

1357099290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1357099290 is an abundant number, since it is smaller than the sum of its proper divisors (2378919438).

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

1357099290 is a wasteful number, since it uses less digits than its factorization.

1357099290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887023 (or 887020 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 1357099290 is about 36838.8285644373. The cubic root of 1357099290 is about 1107.1433974290.

The spelling of 1357099290 in words is "one billion, three hundred fifty-seven million, ninety-nine thousand, two hundred ninety".