1401002748 has 36 divisors (see below), whose sum is σ = 3586259040. Its totient is φ = 461088576.

The previous prime is 1401002741. The next prime is 1401002761. The reversal of 1401002748 is 8472001041.

1401002748 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401002741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243465 + ... + 249152.

Almost surely, 2^1401002748 is an apocalyptic number.

1401002748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1401002748 is an abundant number, since it is smaller than the sum of its proper divisors (2185256292).

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

1401002748 is a wasteful number, since it uses less digits than its factorization.

1401002748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492706 (or 492701 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 1401002748 is about 37429.9712529946. The cubic root of 1401002748 is about 1118.9559647922.

Adding to 1401002748 its reverse (8472001041), we get a palindrome (9873003789).

The spelling of 1401002748 in words is "one billion, four hundred one million, two thousand, seven hundred forty-eight".