629029890 has 48 divisors (see below), whose sum is σ = 1639133496. Its totient is φ = 167366400.

The previous prime is 629029861. The next prime is 629029901. The reversal of 629029890 is 98920926.

It can be written as a sum of positive squares in 4 ways, for example, as 469285569 + 159744321 = 21663^2 + 12639^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33910 + ... + 49070.

Almost surely, 2^629029890 is an apocalyptic number.

629029890 is an abundant number, since it is smaller than the sum of its proper divisors (1010103606).

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

629029890 is a wasteful number, since it uses less digits than its factorization.

629029890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15635 (or 15632 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 629029890 is about 25080.4682970634. The cubic root of 629029890 is about 856.8216419012.

The spelling of 629029890 in words is "six hundred twenty-nine million, twenty-nine thousand, eight hundred ninety".