5395497640 has 64 divisors (see below), whose sum is σ = 13761820800. Its totient is φ = 1887328512.

The previous prime is 5395497631. The next prime is 5395497643. The reversal of 5395497640 is 467945935.

It is a happy number.

It is a super-2 number, since 2×5395497640² = 58222789566491139200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (5395497643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263172 + ... + 282931.

It is an arithmetic number, because the mean of its divisors is an integer number (215028450).

Almost surely, 2^5395497640 is an apocalyptic number.

It is an amenable number.

5395497640 is an abundant number, since it is smaller than the sum of its proper divisors (8366323160).

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

5395497640 is a wasteful number, since it uses less digits than its factorization.

5395497640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546146 (or 546142 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 52.

The square root of 5395497640 is about 73454.0512157090. The cubic root of 5395497640 is about 1753.9229154812.

The spelling of 5395497640 in words is "five billion, three hundred ninety-five million, four hundred ninety-seven thousand, six hundred forty".