1457889628 has 24 divisors (see below), whose sum is σ = 2756426400. Its totient is φ = 670701120.

The previous prime is 1457889619. The next prime is 1457889637. The reversal of 1457889628 is 8269887541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1457889619) and next prime (1457889637).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28903 + ... + 61246.

It is an arithmetic number, because the mean of its divisors is an integer number (114851100).

Almost surely, 2^1457889628 is an apocalyptic number.

It is an amenable number.

1457889628 is a deficient number, since it is larger than the sum of its proper divisors (1298536772).

1457889628 is a wasteful number, since it uses less digits than its factorization.

1457889628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90477 (or 90475 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 58.

The square root of 1457889628 is about 38182.3208828379. The cubic root of 1457889628 is about 1133.9003310134.

The spelling of 1457889628 in words is "one billion, four hundred fifty-seven million, eight hundred eighty-nine thousand, six hundred twenty-eight".