62640243 has 32 divisors (see below), whose sum is σ = 97310720. Its totient is φ = 39774240.

The previous prime is 62640209. The next prime is 62640269. The reversal of 62640243 is 34204626.

It is not a de Polignac number, because 62640243 - 2⁸ = 62639987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (62640043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55521 + ... + 56637.

It is an arithmetic number, because the mean of its divisors is an integer number (3040960).

Almost surely, 2^62640243 is an apocalyptic number.

62640243 is a deficient number, since it is larger than the sum of its proper divisors (34670477).

62640243 is a wasteful number, since it uses less digits than its factorization.

62640243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 1218 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 62640243 is about 7914.5589264342. The cubic root of 62640243 is about 397.1468704322.

Adding to 62640243 its reverse (34204626), we get a palindrome (96844869).

The spelling of 62640243 in words is "sixty-two million, six hundred forty thousand, two hundred forty-three".