102040472 has 16 divisors (see below), whose sum is σ = 195993000. Its totient is φ = 49775680.

The previous prime is 102040447. The next prime is 102040483. The reversal of 102040472 is 274040201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155222 + ... + 155877.

Almost surely, 2^102040472 is an apocalyptic number.

It is an amenable number.

102040472 is a deficient number, since it is larger than the sum of its proper divisors (93952528).

102040472 is a wasteful number, since it uses less digits than its factorization.

102040472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311146 (or 311142 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 102040472 is about 10101.5084022140. The cubic root of 102040472 is about 467.2946615556.

Adding to 102040472 its reverse (274040201), we get a palindrome (376080673).

The spelling of 102040472 in words is "one hundred two million, forty thousand, four hundred seventy-two".