1601955474 has 64 divisors (see below), whose sum is σ = 4021954560. Its totient is φ = 414754560.

The previous prime is 1601955437. The next prime is 1601955479. The reversal of 1601955474 is 4745591061.

It is a super-3 number, since 3×1601955474³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1601955479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25287 + ... + 61994.

It is an arithmetic number, because the mean of its divisors is an integer number (62843040).

Almost surely, 2^1601955474 is an apocalyptic number.

1601955474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1601955474 is an abundant number, since it is smaller than the sum of its proper divisors (2419999086).

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

1601955474 is a wasteful number, since it uses less digits than its factorization.

1601955474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87335.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 1601955474 is about 40024.4359610476. The cubic root of 1601955474 is about 1170.0833880226.

The spelling of 1601955474 in words is "one billion, six hundred one million, nine hundred fifty-five thousand, four hundred seventy-four".