634225155740 has 48 divisors (see below), whose sum is σ = 1453048952544. Its totient is φ = 230611968000.

The previous prime is 634225155737. The next prime is 634225155803. The reversal of 634225155740 is 47551522436.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 634225155691 and 634225155700.

It is a congruent number.

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, 3523940 + ... + 3699540.

It is an arithmetic number, because the mean of its divisors is an integer number (30271853178).

Almost surely, 2^634225155740 is an apocalyptic number.

It is an amenable number.

634225155740 is an abundant number, since it is smaller than the sum of its proper divisors (818823796804).

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

634225155740 is a wasteful number, since it uses less digits than its factorization.

634225155740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192038 (or 192036 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 44.

The spelling of 634225155740 in words is "six hundred thirty-four billion, two hundred twenty-five million, one hundred fifty-five thousand, seven hundred forty".