102070428 has 24 divisors (see below), whose sum is σ = 239378832. Its totient is φ = 33849984.

The previous prime is 102070427. The next prime is 102070453. The reversal of 102070428 is 824070201.

It is a junction number, because it is equal to n+sod(n) for n = 102070398 and 102070407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102070427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19225 + ... + 23952.

It is an arithmetic number, because the mean of its divisors is an integer number (9974118).

Almost surely, 2^102070428 is an apocalyptic number.

It is an amenable number.

102070428 is an abundant number, since it is smaller than the sum of its proper divisors (137308404).

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

102070428 is a wasteful number, since it uses less digits than its factorization.

102070428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43381 (or 43379 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 102070428 is about 10102.9910422607. The cubic root of 102070428 is about 467.3403849469.

The spelling of 102070428 in words is "one hundred two million, seventy thousand, four hundred twenty-eight".