71427400 has 48 divisors (see below), whose sum is σ = 181171440. Its totient is φ = 25972800.

The previous prime is 71427383. The next prime is 71427409. The reversal of 71427400 is 472417.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (71427409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14034 + ... + 18433.

It is an arithmetic number, because the mean of its divisors is an integer number (3774405).

Almost surely, 2^71427400 is an apocalyptic number.

It is an amenable number.

71427400 is an abundant number, since it is smaller than the sum of its proper divisors (109744040).

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

71427400 is a wasteful number, since it uses less digits than its factorization.

71427400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32494 (or 32485 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 71427400 is about 8451.4732443521. The cubic root of 71427400 is about 414.9109984782.

Adding to 71427400 its reverse (472417), we get a palindrome (71899817).

The spelling of 71427400 in words is "seventy-one million, four hundred twenty-seven thousand, four hundred".