1401045500 has 24 divisors (see below), whose sum is σ = 3059884464. Its totient is φ = 560418000.

The previous prime is 1401045491. The next prime is 1401045511. The reversal of 1401045500 is 55401041.

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

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, 1400546 + ... + 1401545.

It is an arithmetic number, because the mean of its divisors is an integer number (127495186).

Almost surely, 2^1401045500 is an apocalyptic number.

1401045500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401045500 is an abundant number, since it is smaller than the sum of its proper divisors (1658838964).

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

1401045500 is a wasteful number, since it uses less digits than its factorization.

1401045500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802110 (or 2802098 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1401045500 is about 37430.5423417829. The cubic root of 1401045500 is about 1118.9673464303.

Adding to 1401045500 its reverse (55401041), we get a palindrome (1456446541).

The spelling of 1401045500 in words is "one billion, four hundred one million, forty-five thousand, five hundred".