2151404334 has 16 divisors (see below), whose sum is σ = 4780898640. Its totient is φ = 717134760.

The previous prime is 2151404317. The next prime is 2151404347. The reversal of 2151404334 is 4334041512.

It is a happy number.

2151404334 is a `hidden beast` number, since 215 + 14 + 0 + 433 + 4 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2151404298 and 2151404307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19920357 + ... + 19920464.

It is an arithmetic number, because the mean of its divisors is an integer number (298806165).

Almost surely, 2^2151404334 is an apocalyptic number.

2151404334 is an abundant number, since it is smaller than the sum of its proper divisors (2629494306).

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

2151404334 is a wasteful number, since it uses less digits than its factorization.

2151404334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39840832 (or 39840826 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2151404334 is about 46383.2333284345. The cubic root of 2151404334 is about 1290.9438306392.

Adding to 2151404334 its reverse (4334041512), we get a palindrome (6485445846).

The spelling of 2151404334 in words is "two billion, one hundred fifty-one million, four hundred four thousand, three hundred thirty-four".