155638462 has 16 divisors (see below), whose sum is σ = 280851840. Its totient is φ = 63191448.

The previous prime is 155638433. The next prime is 155638477. The reversal of 155638462 is 264836551.

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, 292288 + ... + 292819.

It is an arithmetic number, because the mean of its divisors is an integer number (17553240).

Almost surely, 2^155638462 is an apocalyptic number.

155638462 is a deficient number, since it is larger than the sum of its proper divisors (125213378).

155638462 is a wasteful number, since it uses less digits than its factorization.

155638462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585135.

The product of its digits is 172800, while the sum is 40.

The square root of 155638462 is about 12475.5144984085. The cubic root of 155638462 is about 537.9050771573.

It can be divided in two parts, 15563 and 8462, that added together give a square (24025 = 155²).

The spelling of 155638462 in words is "one hundred fifty-five million, six hundred thirty-eight thousand, four hundred sixty-two".