1357485890 has 8 divisors (see below), whose sum is σ = 2443474620. Its totient is φ = 542994352.

The previous prime is 1357485889. The next prime is 1357485901. The reversal of 1357485890 is 985847531.

It can be written as a sum of positive squares in 2 ways, for example, as 1273561969 + 83923921 = 35687^2 + 9161^2 .

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

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, 67874285 + ... + 67874304.

Almost surely, 2^1357485890 is an apocalyptic number.

1357485890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1357485890 is a deficient number, since it is larger than the sum of its proper divisors (1085988730).

1357485890 is a wasteful number, since it uses less digits than its factorization.

1357485890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135748596.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The square root of 1357485890 is about 36844.0753717609. The cubic root of 1357485890 is about 1107.2485189440.

The spelling of 1357485890 in words is "one billion, three hundred fifty-seven million, four hundred eighty-five thousand, eight hundred ninety".