2696453640 has 192 divisors, whose sum is σ = 9599569200. Its totient is φ = 653377536.

The previous prime is 2696453629. The next prime is 2696453653. The reversal of 2696453640 is 463546962.

2696453640 is a `hidden beast` number, since 26 + 96 + 4 + 536 + 4 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2346239844 + 350213796 = 48438^2 + 18714^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 169884 + ... + 185076.

Almost surely, 2^2696453640 is an apocalyptic number.

2696453640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2696453640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4799784600).

2696453640 is an abundant number, since it is smaller than the sum of its proper divisors (6903115560).

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

2696453640 is a wasteful number, since it uses less digits than its factorization.

2696453640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15256 (or 15249 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The square root of 2696453640 is about 51927.3881492224. The cubic root of 2696453640 is about 1391.8667257461.

The spelling of 2696453640 in words is "two billion, six hundred ninety-six million, four hundred fifty-three thousand, six hundred forty".