1457171490 has 32 divisors (see below), whose sum is σ = 3702931200. Its totient is φ = 365721344.

The previous prime is 1457171483. The next prime is 1457171491. The reversal of 1457171490 is 941717541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1457171491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1428090 + ... + 1429109.

It is an arithmetic number, because the mean of its divisors is an integer number (115716600).

Almost surely, 2^1457171490 is an apocalyptic number.

1457171490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1457171490 is an abundant number, since it is smaller than the sum of its proper divisors (2245759710).

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

1457171490 is a wasteful number, since it uses less digits than its factorization.

1457171490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857226.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 1457171490 is about 38172.9156601903. The cubic root of 1457171490 is about 1133.7141187787.

The spelling of 1457171490 in words is "one billion, four hundred fifty-seven million, one hundred seventy-one thousand, four hundred ninety".