1401033040 has 80 divisors (see below), whose sum is σ = 3708084096. Its totient is φ = 487308800.

The previous prime is 1401033013. The next prime is 1401033043. The reversal of 1401033040 is 403301041.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401033043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14371 + ... + 54850.

Almost surely, 2^1401033040 is an apocalyptic number.

1401033040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401033040 is an abundant number, since it is smaller than the sum of its proper divisors (2307051056).

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

1401033040 is a wasteful number, since it uses less digits than its factorization.

1401033040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69268 (or 69262 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1401033040 is about 37430.3758997956. The cubic root of 1401033040 is about 1118.9640292945.

Adding to 1401033040 its reverse (403301041), we get a palindrome (1804334081).

The spelling of 1401033040 in words is "one billion, four hundred one million, thirty-three thousand, forty".