1401038828 has 48 divisors (see below), whose sum is σ = 2826690048. Its totient is φ = 595200000.

The previous prime is 1401038827. The next prime is 1401038861. The reversal of 1401038828 is 8288301041.

It is a super-2 number, since 2×1401038828² = 3925819595127227168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1401038827) 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, 2185388 + ... + 2186028.

It is an arithmetic number, because the mean of its divisors is an integer number (58889376).

Almost surely, 2^1401038828 is an apocalyptic number.

It is an amenable number.

1401038828 is an abundant number, since it is smaller than the sum of its proper divisors (1425651220).

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

1401038828 is a wasteful number, since it uses less digits than its factorization.

1401038828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 1401038828 is about 37430.4532165989. The cubic root of 1401038828 is about 1118.9655701944.

Adding to 1401038828 its reverse (8288301041), we get a palindrome (9689339869).

The spelling of 1401038828 in words is "one billion, four hundred one million, thirty-eight thousand, eight hundred twenty-eight".