1453069840 has 40 divisors (see below), whose sum is σ = 3556200960. Its totient is φ = 550636416.

The previous prime is 1453069823. The next prime is 1453069841. The reversal of 1453069840 is 489603541.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1453069840² = 4222823919835251200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1453069793 and 1453069802.

It is not an unprimeable number, because it can be changed into a prime (1453069841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476464 + ... + 479503.

It is an arithmetic number, because the mean of its divisors is an integer number (88905024).

Almost surely, 2^1453069840 is an apocalyptic number.

1453069840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453069840 is an abundant number, since it is smaller than the sum of its proper divisors (2103131120).

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

1453069840 is a wasteful number, since it uses less digits than its factorization.

1453069840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955999 (or 955993 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 1453069840 is about 38119.1531910141. The cubic root of 1453069840 is about 1132.6493920303.

The spelling of 1453069840 in words is "one billion, four hundred fifty-three million, sixty-nine thousand, eight hundred forty".