629040906 has 96 divisors (see below), whose sum is σ = 1507903488. Its totient is φ = 188334720.

The previous prime is 629040883. The next prime is 629040911. The reversal of 629040906 is 609040926.

It is a super-2 number, since 2×629040906² = 791384922842601672, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1812625 + ... + 1812971.

It is an arithmetic number, because the mean of its divisors is an integer number (15707328).

Almost surely, 2^629040906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 629040906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (753951744).

629040906 is an abundant number, since it is smaller than the sum of its proper divisors (878862582).

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

629040906 is a wasteful number, since it uses less digits than its factorization.

629040906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 629040906 is about 25080.6879092261. The cubic root of 629040906 is about 856.8266436201.

The spelling of 629040906 in words is "six hundred twenty-nine million, forty thousand, nine hundred six".