629457906 has 32 divisors (see below), whose sum is σ = 1569558528. Its totient is φ = 163495440.

The previous prime is 629457893. The next prime is 629457919. The reversal of 629457906 is 609754926.

It is an interprime number because it is at equal distance from previous prime (629457893) and next prime (629457919).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680770 + ... + 681693.

It is an arithmetic number, because the mean of its divisors is an integer number (49048704).

Almost surely, 2^629457906 is an apocalyptic number.

629457906 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

629457906 is an abundant number, since it is smaller than the sum of its proper divisors (940100622).

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

629457906 is a wasteful number, since it uses less digits than its factorization.

629457906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362486.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 629457906 is about 25088.9997010642. Note that the first 3 decimals coincide. The cubic root of 629457906 is about 857.0159359134.

The spelling of 629457906 in words is "six hundred twenty-nine million, four hundred fifty-seven thousand, nine hundred six".