616201400 has 24 divisors (see below), whose sum is σ = 1432668720. Its totient is φ = 246480480.

The previous prime is 616201387. The next prime is 616201409. The reversal of 616201400 is 4102616.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616201409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1540304 + ... + 1540703.

It is an arithmetic number, because the mean of its divisors is an integer number (59694530).

Almost surely, 2^616201400 is an apocalyptic number.

It is an amenable number.

616201400 is an abundant number, since it is smaller than the sum of its proper divisors (816467320).

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

616201400 is a wasteful number, since it uses less digits than its factorization.

616201400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081023 (or 3081014 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 616201400 is about 24823.4042790267. The cubic root of 616201400 is about 850.9568923802.

The spelling of 616201400 in words is "six hundred sixteen million, two hundred one thousand, four hundred".