4002149550 has 96 divisors (see below), whose sum is σ = 11940307200. Its totient is φ = 866626560.

The previous prime is 4002149539. The next prime is 4002149561. The reversal of 4002149550 is 559412004.

It is an interprime number because it is at equal distance from previous prime (4002149539) and next prime (4002149561).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 80355 + ... + 120254.

It is an arithmetic number, because the mean of its divisors is an integer number (124378200).

Almost surely, 2^4002149550 is an apocalyptic number.

4002149550 is an abundant number, since it is smaller than the sum of its proper divisors (7938157650).

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

4002149550 is a wasteful number, since it uses less digits than its factorization.

4002149550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200650 (or 200645 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 4002149550 is about 63262.5446057934. The cubic root of 4002149550 is about 1587.6853508757.

The spelling of 4002149550 in words is "four billion, two million, one hundred forty-nine thousand, five hundred fifty".