71853430 has 48 divisors (see below), whose sum is σ = 145574352. Its totient is φ = 25502400.

The previous prime is 71853367. The next prime is 71853461. The reversal of 71853430 is 3435817.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 71853392 and 71853401.

It is a congruent number.

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, 51340 + ... + 52720.

It is an arithmetic number, because the mean of its divisors is an integer number (3032799).

Almost surely, 2^71853430 is an apocalyptic number.

71853430 is an abundant number, since it is smaller than the sum of its proper divisors (73720922).

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

71853430 is a wasteful number, since it uses less digits than its factorization.

71853430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 71853430 is about 8476.6402542517. The cubic root of 71853430 is about 415.7342784996.

The spelling of 71853430 in words is "seventy-one million, eight hundred fifty-three thousand, four hundred thirty".