146629638 has 12 divisors (see below), whose sum is σ = 317697588. Its totient is φ = 48876540.

The previous prime is 146629621. The next prime is 146629643. The reversal of 146629638 is 836926641.

146629638 is a `hidden beast` number, since 1 + 4 + 6 + 6 + 2 + 9 + 638 = 666.

It is a super-2 number, since 2×146629638² = 43000501480022088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 146629593 and 146629602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4073028 + ... + 4073063.

It is an arithmetic number, because the mean of its divisors is an integer number (26474799).

Almost surely, 2^146629638 is an apocalyptic number.

146629638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

146629638 is an abundant number, since it is smaller than the sum of its proper divisors (171067950).

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

146629638 is a wasteful number, since it uses less digits than its factorization.

146629638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8146099 (or 8146096 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 146629638 is about 12109.0725491261. The cubic root of 146629638 is about 527.3196082861.

The spelling of 146629638 in words is "one hundred forty-six million, six hundred twenty-nine thousand, six hundred thirty-eight".