2154437634 has 8 divisors (see below), whose sum is σ = 4308875280. Its totient is φ = 718145876.

The previous prime is 2154437633. The next prime is 2154437639. The reversal of 2154437634 is 4367344512.

It is a sphenic number, since it is the product of 3 distinct primes.

2154437634 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2154437592 and 2154437601.

It is not an unprimeable number, because it can be changed into a prime (2154437633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179536464 + ... + 179536475.

It is an arithmetic number, because the mean of its divisors is an integer number (538609410).

Almost surely, 2^2154437634 is an apocalyptic number.

2154437634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2154437634 is a wasteful number, since it uses less digits than its factorization.

2154437634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359072944.

The product of its digits is 241920, while the sum is 39.

The square root of 2154437634 is about 46415.9200490521. The cubic root of 2154437634 is about 1291.5502533021.

The spelling of 2154437634 in words is "two billion, one hundred fifty-four million, four hundred thirty-seven thousand, six hundred thirty-four".