1250427990 has 64 divisors (see below), whose sum is σ = 3434628096. Its totient is φ = 285405312.

The previous prime is 1250427973. The next prime is 1250427991. The reversal of 1250427990 is 997240521.

It is a super-3 number, since 3×1250427990³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250427991) 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, 158479 + ... + 166181.

It is an arithmetic number, because the mean of its divisors is an integer number (53666064).

Almost surely, 2^1250427990 is an apocalyptic number.

1250427990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1250427990 is an abundant number, since it is smaller than the sum of its proper divisors (2184200106).

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

1250427990 is a wasteful number, since it uses less digits than its factorization.

1250427990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8493.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1250427990 is about 35361.3912339433. The cubic root of 1250427990 is about 1077.3402745207.

The spelling of 1250427990 in words is "one billion, two hundred fifty million, four hundred twenty-seven thousand, nine hundred ninety".