1371290690 has 64 divisors (see below), whose sum is σ = 3116482560. Its totient is φ = 421986240.

The previous prime is 1371290681. The next prime is 1371290693. The reversal of 1371290690 is 960921731.

It is a happy number.

It is a super-2 number, since 2×1371290690² = 3760876312961352200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1371290693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49559 + ... + 72101.

It is an arithmetic number, because the mean of its divisors is an integer number (48695040).

Almost surely, 2^1371290690 is an apocalyptic number.

1371290690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1371290690 is an abundant number, since it is smaller than the sum of its proper divisors (1745191870).

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

1371290690 is a wasteful number, since it uses less digits than its factorization.

1371290690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22647.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 1371290690 is about 37030.9423320552. The cubic root of 1371290690 is about 1110.9892136681.

The spelling of 1371290690 in words is "one billion, three hundred seventy-one million, two hundred ninety thousand, six hundred ninety".