71492470 has 24 divisors (see below), whose sum is σ = 149697504. Its totient is φ = 24511536.

The previous prime is 71492437. The next prime is 71492471. The reversal of 71492470 is 7429417.

It is a super-2 number, since 2×71492470² = 10222346533401800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71492471) 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 11 ways as a sum of consecutive naturals, for example, 72462 + ... + 73441.

It is an arithmetic number, because the mean of its divisors is an integer number (6237396).

Almost surely, 2^71492470 is an apocalyptic number.

71492470 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71492470 is an abundant number, since it is smaller than the sum of its proper divisors (78205034).

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

71492470 is a wasteful number, since it uses less digits than its factorization.

71492470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145924 (or 145917 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 71492470 is about 8455.3219926860. The cubic root of 71492470 is about 415.0369541777.

The spelling of 71492470 in words is "seventy-one million, four hundred ninety-two thousand, four hundred seventy".